b The average weekly hours were assumed to be constant for these industries; therefore, the output
per hour worked and the output per employee measures are identical in the years for which data are given
for both measures.

c Data did not meet the publication standards for the Bureau of Labor Statistics and are considered less
reliable than the published series.

d Full-time and part-time employees are counted equally. Hence, these data do not reflect output per
full-time equivalent employee.